13957919038489 has 4 divisors (see below), whose sum is σ = 13958577669556. Its totient is φ = 13957260407424.

The previous prime is 13957919038403. The next prime is 13957919038499. The reversal of 13957919038489 is 98483091975931.

13957919038489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1169570872089 + 12788348166400 = 1081467^2 + 3576080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13957919038489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13957919038499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329283744 + ... + 329326129.

It is an arithmetic number, because the mean of its divisors is an integer number (3489644417389).

Almost surely, 2^{13957919038489} is an apocalyptic number.

It is an amenable number.

13957919038489 is a deficient number, since it is larger than the sum of its proper divisors (658631067).

13957919038489 is an equidigital number, since it uses as much as digits as its factorization.

13957919038489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658631066.

The product of its (nonzero) digits is 529079040, while the sum is 76.

The spelling of 13957919038489 in words is "thirteen trillion, nine hundred fifty-seven billion, nine hundred nineteen million, thirty-eight thousand, four hundred eighty-nine".